| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve TN characteristics of an electric motor. <P>SOLUTION: The motor control device comprises: a control part which controls supply of driving current to an electric motor; and a rotational speed detection part which detects the rotational speed of the electric motor. The driving current includes d-axis current and q-axis current. The control part calculates a q-axis current instruction value which is a target value of the q-axis current based on a torque instruction value to the electric motor, calculates a d-axis current instruction value which is a target value of the d-axis current, using the calculated q-axis current instruction value and the difference between the rotational speed of the electric motor and a predetermined base rotational speed of the electric motor, and performs a vector control to the electric motor, using the d-axis current instruction value and the q-axis current instruction value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
